View shows the telephotograph receiving machine with the unexposed photograph negative mounted on its rotating and slowly advancing carriage in the left foreground. Before the unexposed film is placed on the machine, the room is darkened and as the film rotates and slides along in front of the "light valve," a tiny flickering beam of light reproduces the picture coming from the sending end by laying streaks of it only one hundreth of an inch wide, side by side. H. H. Hermanson, operator of the receiving machine at the Los Angeles telephotograph station, prepares the light valve just previous to the reception of a photograph. Photo dated: August 4, 1928.
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.
